It’s a good idea to have one downspout for every 20′ of gutter. Adding a downspout to your existing drainage system is simpler that you think but it does require several tools.

Here are the tools that you will need:

photo 2 61 400x298 Add A Downspout To Your Aluminum Gutter

Screw in the two brackets, anchor may be necessary if going into brick.

photo 12 400x298 Add A Downspout To Your Aluminum Gutter


photo 22 400x535 Add A Downspout To Your Aluminum Gutter

Mark a 4″x3″ X that will be cut for water to drain out.

photo 32 400x298 Add A Downspout To Your Aluminum Gutter

Cut the X using a razor blade.

photo 42 400x298 Add A Downspout To Your Aluminum Gutter

Fold open the fins.

photo 1 11 400x298 Add A Downspout To Your Aluminum Gutter

Here is a top view:

photo 2 12 400x298 Add A Downspout To Your Aluminum Gutter

Hold up the two elbows and measure the gap between them.

photo 3 12 400x298 Add A Downspout To Your Aluminum Gutter

Cut a filler piece for the gap between the downspout elbows.

photo 4 12 400x298 Add A Downspout To Your Aluminum Gutter

Break out the crimpers.

photo 1 21 400x298 Add A Downspout To Your Aluminum Gutter

Crimp the corners to allow the filler piece to be inserted into the elbow.

photo 2 22 400x298 Add A Downspout To Your Aluminum Gutter

photo 4 22 400x298 Add A Downspout To Your Aluminum Gutter

Install the filler piece between the elbows.

photo 1 41 400x298 Add A Downspout To Your Aluminum Gutter

Hold the elbows on the wall where they go and mark where the downspout will slide up on the elbow.

photo 2 32 400x298 Add A Downspout To Your Aluminum Gutter

Measure down to the top of a new elbow and up to your mark on the wall.

photo 3 33 400x298 Add A Downspout To Your Aluminum Gutter

Pull your tape line from the factory crimped side of the downspout.

photo 4 32 400x298 Add A Downspout To Your Aluminum Gutter

Mark the downspout length.

photo 1 53 400x298 Add A Downspout To Your Aluminum Gutter

Cut your mark.

photo 2 41 400x298 Add A Downspout To Your Aluminum Gutter

Assembly the complete downspout.

photo 3 41 400x298 Add A Downspout To Your Aluminum Gutter

Shoot in a few zip screws in the joints to secure the downspout together.

photo 4 42 400x298 Add A Downspout To Your Aluminum Gutter

Attach the downspout to the gutter.

photo 1 62 400x298 Add A Downspout To Your Aluminum Gutter

Secure the downspout by using the straps.

photo 2 53 400x298 Add A Downspout To Your Aluminum Gutter

Make sure you have a couple of inches of clearance under the downspout.

photo 3 53 400x298 Add A Downspout To Your Aluminum Gutter

Enjoy the new downspout.

photo 1 72 400x535 Add A Downspout To Your Aluminum Gutter